<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="7">
          <!-- 搜索与添加框  栅格布局  el-row el-col :span代表占多少位置  :gutter代表间距-->
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable :clear="getUserList()">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data="userList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
            <template slot-scope="scope">
                <!-- 修改按钮 -->
              <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
              <!-- 删除按钮 -->
              <el-button type="danger" icon="el-icon-delete"  size="mini" @click="removerUserById(scope.row.id)"></el-button>
              <!-- 分配角色按钮 -->
            <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting"  size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
            </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
       <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
    </el-card>


    <!-- 添加用户的对话框 -->
    <el-dialog
  title="添加用户"
  :visible.sync="addDialogVisible"
  width="50%"
  @close="addDiaClosed"
  >
  <!-- 内容主题区域 -->
 <el-form :model="addForm" :rules="ruleFormRules" ref="ruleFormRef" label-width="70px">
  <el-form-item label="用户名" prop="username">
    <el-input v-model="addForm.username"></el-input>
  </el-form-item>
  <el-form-item label="密码" prop="password">
    <el-input v-model="addForm.password"></el-input>
  </el-form-item>
  <el-form-item label="邮箱" prop="email">
    <el-input v-model="addForm.email"></el-input>
  </el-form-item>
    <el-form-item label="手机" prop="mobile">
    <el-input v-model="addForm.mobile"></el-input>
  </el-form-item>
 </el-form>
  <!-- 底部区域 -->
  <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
  </span>
</el-dialog>

<!-- 修改用户的对话框 -->
<el-dialog title="修改用户" :visible.sync="editDialogVisbile" width="50%" @close="editDialogClosed">
 <el-form :model="aditFrom" :rules="editFormRules" ref="editFormRuleForm" label-width="70px">
  <el-form-item label="用户名" >
    <!-- disabled 禁用 -->
    <el-input v-model="aditFrom.username" disabled></el-input>
  </el-form-item>
  <el-form-item label="邮箱" >
    <!-- disabled 禁用 -->
    <el-input v-model="aditFrom.email" prop="email"></el-input>
  </el-form-item>
  <el-form-item label="手机号" >
    <!-- disabled 禁用 -->
    <el-input v-model="aditFrom.mobile" prop="mobile"></el-input>
  </el-form-item>
   </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisbile = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
</el-dialog>

<!-- 分配角色的对话框 -->
<el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible"
  width="50%"
   @close ="setRoleDialogClosed">
  <div>
  <p>当前的用户 : {{userInfo.username}}</p>
  <p>当前的角色 : {{userInfo.role_name}}</p>
   <p>分配新角色:
       <el-select v-model="seletedRoleId" placeholder="请选择">
    <el-option
      v-for="item in rolesList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
   </p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
  </div>
</template>

<script>
export default {
  name: "Users",
  data() {

   //验证邮箱的规则
   var checkEmail = (rule,value,cb)=>{
       //验证邮箱的正则表达式
     const regEmai=/^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/
     if(regEmai.test(value)){
         //合法的邮箱
         return cb()
     }
     cb(new Error("请输入合法的邮箱"))
   }

   //验证手机号的规则
var checekMobile = (rule,value,cb)=>{
   //验证手机号的正则表达式
   let reg = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
   if(reg.test(value)){
       return cb()
   }
   cb(new Error("请输入合法的手机号"))
}

    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: "",
        //当前的页数
        pagenum: 1,
        //当前每页显示多少条数据
        pagesize: 2,
      },
      userList: [],
      total: 0,
      //控制添加用户对话框的显示与隐藏
      addDialogVisible:false,
      //添加用户的表单数据
      addForm:{
  username:"",
  password:"",
  email:"",
  mobile:""
      },
      //添加表单的验证规则对象
      ruleFormRules:{
     username:[
        {required:true,message:"请输入用户名",trigger:"blur"},
        {min:3,max:10,message:"用户名的长度在3~10字符之间",trigger:"blur"}
     ],
     password:[
           {required:true,message:"请输入密码",trigger:"blur"},
           {min:6,max:15,message:"用户名的长度在6~15字符之间",trigger:"blur"}
     ],
     email:[
          {required:true,message:"请输入邮箱",trigger:"blur"},
          {validator:checkEmail,trigger:"blur"}
     ],
    mobile:[
         {required:true,message:"请输入手机号码",trigger:"blur"},
         {validator:checekMobile,trigger:"blur"}
    ]
      },

      //控制修改用户的显示隐藏
      editDialogVisbile:false,
      //查询到用户信息对象
      aditFrom:{},
      //修改表单的验证对象
      editFormRules:{
    email:[
            {required:true,message:"请输入邮箱",trigger:"blur"},
          {validator:checkEmail,trigger:"blur"},
    ],
    mobile:[
         {required:true,message:"请输入手机号码",trigger:"blur"},
         {validator:checekMobile,trigger:"blur"},
    ]
      },

      //控制分配角色对话框的显示与隐藏
      setRoleDialogVisible:false,
    //需要被分配角色的用户信息
      userInfo:{

      },
      //所有角色的数据列表
      rolesList:[],

      //选中的角色id值
      seletedRoleId:""
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get("/users", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200) {
        return this.$message.error("获取用户列表失败!");
      }
      this.userList = res.data.users;
      this.total = res.data.total;
    },
    // 监听pagesize改变的事件
    handleSizeChange(newSzie){
   this.queryInfo.pagesize = newSzie
   this.getUserList()
    },
    //监听页面值改变的事件
    handleCurrentChange(newPage){
     this.queryInfo.pagenum =newPage
        this.getUserList()
    },
    //监听switch开关状态的改变
   async userStateChanged(userInfo){
    const {data:res} = await this.$http.put(`/users/${userInfo.id}/state/${userInfo.mg_state}`)
 if(res.meta.status!==200) {
     userInfo.mg_state =! userInfo.mg_state
     return this.$message.error("更新用户状态失败")
   }
   this.$message.success("更新用户状态成功") 

    },
    //监听添加用户对话框的关闭事件
    addDiaClosed(){
      this.$refs.ruleFormRef.resetFields()
    },
    //点击按钮添加新用户
    addUser(){
      this.$refs.ruleFormRef.validate(async valid=>{
        if(!valid) return 
        //可以添加发送添加用户的网络请求
     const {data:res } = await this.$http.post("users",this.addForm)
     if(res.meta.status !==201) {
       this.$message.error("添加用户成功")
     }
     this.$message.success("添加用户成功")
     //隐藏添加用户的对话框
     this.addDialogVisible = false
     //重新用户列表
     this.getUserList()
      })
    },
    //展示编辑用户的对话框
   async showEditDialog(id){
   const {data:res} = await this.$http.get("users/" +id)
   if(res.meta.status !== 200){
     return this.$message.error("查询用户信息失败")
   } 
   this.aditFrom = res.data
   this.editDialogVisbile =true
    
    },
    //监听修改用户对话框的关闭事件
    editDialogClosed(){
      this.$refs.editFormRuleForm.resetFields()
    },
    //修改用户信息并提交
    editUserInfo(){
   this.$refs.editFormRuleForm.validate(async valid=>{
      if(!valid) return

      //发起修改用户信息的数据请求
      const {data:res} = await this.$http.put("users/"+this.aditFrom.id,{email:this.aditFrom.email,mobile:this.aditFrom.mobile})
      console.log(res)
      if(res.meta.status !==200){
        return this.$message.error("更新数据信息失败")
      }

      //关闭对话框
      this.editDialogVisbile = false
      //刷新数据列表
      this.getUserList()
      //提示修改成功
      this.$message.success("更新用户信息成功")
   })
    },

    //根据id删除对应的用户信息
   async removerUserById(id){
  //弹框询问用户是否删除
 const confirmResult =  await this.$confirm('此操作将永久删除该用户,是否继续', '提示', {
          distinguishCancelAndClose: true,
          confirmButtonText: '确定',
          cancelButtonText: '取消'
        }).catch(err=>err)
        //如果用户确认删除,则返回值为字符串confirm 
        //如果用户取消了删除,则返回值字符串cancel
        // console.log(confirmResult)
        if(confirmResult !=="confirm") {
          return this.$message.info("已取消删除")
        }
      const {data:res}  = await this.$http.delete("users/"+id)
      if (res.meta.status !==200){
        return this.$message.error("删除用户失败")
      }
      this.$message.success("删除用户成功")
      this.getUserList()
    },

    //展示分配角色的对话框
     async  setRole(userInfo){
       this.userInfo = userInfo

       //在展示对话框之前 ,获取所有角色的列表
     const {data:res} =   await this.$http.get("roles")
    if(res.meta.status !==200){
      return this.$message.error("获取角色列表失败")
    }
    this.rolesList = res.data
    console
   this.setRoleDialogVisible = true
    },

    //点击按钮分配角色
    async saveRoleInfo(){
      if(!this.seletedRoleId){
        return this.$message.error("请选择要分配的角色!")
      } 
 const {data:res}=  await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.seletedRoleId})
  if(res.meta.status!==200){
    return this.$message.error("更新角色失败或更新admin也会失败")
  }
   this.$message.success("更新角色成功")
   this.setRoleDialogVisible = false
    },
    //分配角色对话框的关闭事件
    setRoleDialogClosed(){
      this.seletedRoleId=""
      this.userInfo ={}
    }
  },
};
</script>

<style scoped>
</style>